Except he's not practicing science, he's publishing false propaganda. And his actions in this case, a case that he brought, should prove that to everybody. But it won't. The True Believers will not be shaken from their faith, the publication of the East Anglia emails should have done that years ago.
Proving that Global Warming is a hoax to a Climate Change zealot, is similar to proving Islam is a hoax to a muslim. Will never happen. You just have to consider them fanatics and assume all their work is horribly biased trash. There are actually zealots out there that think the Great Barrier Reef is completely gone. And you cannot tell them otherwise. Even if you take them to the GBR and show them vast areas are alive and healthy. The issue is not the issue. All that matters is the cause.